High-strength lightweight porous concrete and preparation method thereof

A porous concrete and concrete technology, applied in the field of concrete, can solve the problems of low strength, decreased drainage capacity, low strength of porous concrete, etc., and achieve the effect of high structural strength

Pending Publication Date: 2020-11-13
董星
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional treatment method of waste concrete is mainly to transport it to the suburbs for stacking or landfill, which not only costs a lot of freight, but also causes secondary pollution to the environment
At the same time, the use of concrete in the city reduces the drainage capacity of the city. If permeable porous concrete is used, there will be a problem of low strength.
Therefore, it is not only necessary to utilize waste concrete, but also to solve the problem of low strength of porous concrete

Method used

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  • High-strength lightweight porous concrete and preparation method thereof

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Effect test

Embodiment 1

[0044] A method for high-strength lightweight porous concrete, the method comprising the following steps:

[0045] S1. Prepare to receive a flat substrate for pouring concrete mixture. The substrate can be a flat road surface or the lower part of a mold. The mold is generally a cube-shaped mold with a flat lower surface and an opening on the upper part. The opening can Closure causes the mold to form a closed cube.

[0046] S2. Pouring a permeable concrete mixture on the substrate to form a layer of permeable concrete and form a permeable concrete surface;

[0047] S21. Utilize existing concrete blocks to prepare raw materials, specifically:

[0048] S211. Select waste concrete blocks, add them into a high-temperature furnace, and continue to process them at 120° C. for 30 minutes. The exhaust gas concrete block is generally directly selected from the demolished construction site. After removing the internal steel bars, it is placed in a high-temperature furnace for heating....

Embodiment 2

[0063] A method for high-strength lightweight porous concrete, the method comprising the following steps:

[0064] S1. Prepare to receive a flat substrate for pouring concrete mixture. The substrate can be a flat road surface or the lower part of a mold. The mold is generally a cubic mold with a flat lower surface and an opening on the upper part. The opening can Closure causes the mold to form a closed cube.

[0065] S2. Pouring a permeable concrete mixture on the substrate to form a layer of permeable concrete and form a permeable concrete surface;

[0066] S21. Utilize existing concrete blocks to prepare raw materials, specifically:

[0067] S211. Select waste concrete blocks, add them into a high-temperature furnace, and continue to process them at 130° C. for 35 minutes. The exhaust gas concrete block is generally directly selected from the demolished construction site. After removing the internal steel bars, it is placed in a high-temperature furnace for heating. The p...

Embodiment 3

[0082] A method for high-strength lightweight porous concrete, the method comprising the following steps:

[0083] S1. Prepare to receive a flat substrate for pouring concrete mixture. The substrate can be a flat road surface or the lower part of a mold. The mold is generally a cubic mold with a flat lower surface and an opening on the upper part. The opening can Closure causes the mold to form a closed cube.

[0084] S2. Pouring a permeable concrete mixture on the substrate to form a layer of permeable concrete and form a permeable concrete surface;

[0085] S21. Utilize existing concrete blocks to prepare raw materials, specifically:

[0086] S211. Select waste concrete blocks, add them into a high-temperature furnace, and continue to process them at 150° C. for 45 minutes. The exhaust gas concrete block is generally directly selected from the demolished construction site. After removing the internal steel bars, it is placed in a high-temperature furnace for heating. The p...

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Abstract

The invention relates to a method for preparing high-strength lightweight porous concrete. The method comprises the steps of S1 preparing a flat matrix for receiving a poured concrete mixture; S2 pouring a pervious concrete mixture on the base body to form a pervious concrete layer, and form a pervious concrete surface; S3 after a pervious concrete mixture is poured on the prepared base body, pouring a layer of impermeable concrete is poured on the surface of the pervious concrete to form a layer of exposed impermeable concrete surface; and S4 forming one or more joints into concrete having one or more joints extending from at least the exposed impermeable concrete surface to the pervious concrete surface into the impermeable layer. According to the method, the concrete with high structural strength at the upper part and porous permeable lower part can be prepared.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a high-strength lightweight porous concrete and a preparation method thereof. Background technique [0002] In recent years, the world's construction industry has entered a stage of rapid development. As the largest man-made material, the occupation of natural resources and the negative impact on the environment have also triggered discussions on sustainable development issues; The amount of waste concrete and waste concrete discharged from concrete factories and prefabricated component factories is huge. At the same time, it is expected that the discharge of waste concrete will increase with the acceleration of the socialization process worldwide, and the demolition and reconstruction of original buildings will increase day by day. The traditional treatment method of waste concrete is mainly to transport it to the suburbs for stacking or landfill, which not only costs a lot of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/14E01C11/22C04B20/02C04B28/04C04B28/26C04B38/06
CPCC04B20/026C04B28/04C04B28/26C04B38/0605C04B2111/00284C04B2111/00293C04B2111/0075E01C7/14E01C7/142E01C11/226C04B18/16C04B18/142C04B22/04C04B14/104C04B22/143C04B22/064C04B14/068C04B14/06C04B18/08C04B2103/302
Inventor 董星
Owner 董星
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